The Jinruibao GBT of Shanglian Sanbao is a token created and issued by the physical deposit of gold. Through a deposit agreement, ensure that every GBT created and issued on the chain has a sufficient amount of physical gold acceptance. Anyone who owns physical gold can create a corresponding number of GBTs by appointing a qualified gold business agent to manage physical gold according to the deposit consensus process. Anyone who owns GBT can exchange it for a sufficient amount of physical gold through designated branches after paying the handling fee. The establishment and total issuance of GBT only depend on the total amount of physical gold deposited....